Machine for pricking boot and shoe heels



(No Model.) 2 Sheets-Sheet 1. T. P. KING. MACHINE FOR PRIGKING BOOT AND SHOBHEELS.

Patented Apr. 14, 1885.

(No Model.) 2 Sheets-Sheet 2.

. T. P. KING. MACHINE FOR PRIGKILTG BOOT AND SHOE HEELS. No. 315,636. Patented Apr. 14, 1885.

. v V W K UNITED STATES PATENT @rrien.

THOMAS P. KING, OF CHESTER, ILLINOIS.

MACHINE FOR PRICKING BOOT AND SHOE HEELS.

SPECIFICATION forming part of Letters Patent No. 315,636, dated April it, 1885. Application filed July 25, 1884i (No model.)

To all whom it may concern:

Be it known that I, THOMAS P. KING, a citizen of the United States, and aresident of Chester, in the county of Randolph and State of Illinois, have invented certain new and useful Machines for Pricking Boot and Shoe Heels, of which the following is a'specification.

My invention relates to a machine for pricking holes in boot and shoe heels in order to prepare them to receive the nails or pegs by which the layers of leather are held together and the heel secured to the boot or shoe.

The invention consists in certain novel details of construction, arrangement, and combination of the various parts of the machine, whereby provision is made for adapting it to heels of various heights and thicknesses, and for changing the direction of the holes in order to accommodate itto heels of different shapes.

The accompanying drawings illustrate a mode of carrying out my invention;

Figure 1 is a side view, partly in 'section,of a machine embodying my improvements. Fig. is a front view of the same, :also partly in section. Fig. 3 is an end view, and Fig. 4 a detail top view.

The main driving-shaft of the machine is carried by a vertical pedestal, A, secured to the floor, and having at its upper end a horizontal arm, A extending toward the front of the machine. The shaft B has one bearing in the upper end of the pedestal, and the other bearing in a plate, 0, carried by the front end of the arm A.

At the rear end of theshaft B is a belt-pulley, D, to which is attached a wheel or disk, D", considerably larger than the pulley. On the rear side of this disk is a rim or circular rib, d, and near the center is asimilar rib, d", thus forming an annular groove, ti on the rear side of the disk. The rear end of the shaft B passes through the center of the pulley and disk and extends beyond the rear side of the disk. To this projecting portion of the shaft is attached aspring or elastic arm, E, by means of a hub, e, on one end fitting on the shaft B, and a set-screw, f, passing through said hub and bearing against the shaft. In

the face of the inner rib, (F, is a notch, 9, one side of which is abrupt and the other side is inclined. The free end of the spring or elastic arm E engages with this notch, so that I when the pulley D and disk D are revolved in the direction of the arrow in Fig. 3 the shaft B is made to revolve in the same direction. In the pedestal A a bent lever, G, has its fulcrum. The longarm 1 of this lever extends outward within reach of the operator of the machine, and the short arm 2 extends upward and works in the annular groove d in the rear side of the disk D, the end of said short arm being tapering or wedge-shaped. When the long arm 1 of the lever Gis de- 4 pressed, the short arm 2 works near the outer rim or rib, d, and does not interfere with the spring or elastic arm E. hen thelong arm 1 of the lever is raised, the short arm 2 is thrown toward the center and against the inner rib, d", so as to pass under the end of the spring or arm E and lift it out of the notchg. The two positions of the lever are shown in Fig. 3 in full lines and dotted lines, respectively. The arm being thus released from the notch, the disk and pulley, being loose on the shaft, continue to revolve; but the revolution of the shaft itself is stopped.

On the front end of the shaft B is a cam or eccentric, H, which works in a seat formed in the face of the plate 0. In front ofthis plate 0 is another plate, K, of similar shape and size, and provided with a seat for the reception of the cam or eccentric H. The plate K is connected to the plate 0 by a tongue-andgroove connection, so that the plate K may reoiproeate horizontally. The seat in the plate G is large enough to allow free motion to the cam when it is revolving with the shaft B; The seat in the plate K is of smaller dimensions than the circle described by the periphery of the cam in its revolution, so that as the cam H revolves it causes the plate K to reciprocate horizontally in front of the plate C. To the edge of the plate K is attached one end of a short bar, J, the other end of which is provided with a hole, through which a screw, 2', passes loosely and engages with a thread at the bottom of a hole, 0, in the edge of the plate 0. The hole 0 forms a seat fora spring, L, which surrounds the screwt' and presses against the bar J, and thus cooperates with the cam in giving the reciprocating motion to the plate K.

The awl-carrier consists of a bar, M, sliding .m, (shown in dotted lines in Fig. 1,) the dis tance between which shoulders or abutments is less than the circle described by the periphery of the cam in its revolution, so that as the cam revolves the awl-carrier is alternately raised and lowered by the engagement of the cam between the shoulders. Thus, by the operation of the cam in connection with the awlcarrier and the plate in which it works, at,

- each revolution of the cam the awl is made to descend to prick a hole in the heel, and as the awl rises it is carried laterally to bring it to the proper point to make the next hole.

turning in its seat.

or disk Q".

with the hollow stem. Through this hole and into the hollow stem passes another stem, VB,-

.on one side of which is a vertical groove, 1", with which engages a pin or stud, s, on the inner surface of the hollowstem Q,to prevent the steln R from turning. At the :upperend of thestem R is a block or follower, Rt, surmounted by a plate, R, which projects on two opposite sides beyond the block or' follower, and has its projecting portions provided with screw-threaded holes, in which work screws T T. Projecting from the center of the plate R isa post or stem, t, to which is pivotedby means of lugs v, a plate or disk, V, for holding the heel h to be operated upon. On the upper side of the plate or disk Q is acam, W, composed of an inclined plane running spirally. It is pivoted toward one sideof the center of the plate, and is provided with a han'-' dle, w, for operating it. The length of the cam is somewhat greater than a half -circle drawn from its pivot to as a center, and it is provided with a slot forming an are drawn from said center, through which are the stem The lip it serves as i a gage for the top of the heel, and the lip n serves the same purpose for the edge of the heel when being operated upon, as shown in? Fig. 1, where the heel h is shown in dot-ted; lines.

In frontof the pedestal A,and immediately E under the awl-carrier, is a vertical pedestal, i P, which is hollow, and is lined with a sleeve, P in which is a vertical groove or slot, 10. f In this sleeve rests -a spiralspring, S. Fitting j within this spring is a stem, Q, having .on one side a projecting pin orstud, q, engaging with thegroove or slot 19. The length of the stem Q g is less than the depth of thesleeve or tube P The spring S has its lower end resting at the i bottom of the sleeve or tube, and its upper; end bears against a shoulder onthe stem. The spring prevents the stem from descending too low, and the ping andslot p prevent it vfrom 3 The upper .end of the; stem Q carries a circular flat-surfaced plate- The stem Q is vhollow, and in the center of the plate Q is a hole corresponding I R passes, so that the block or follower It rests upon the circular inclined plane of the cam.

The machine constructed and arranged as above described is operated as follows: The heel h is held. by the operator on the top of the plate V, and is gaged by the lips n 07. The spring S allows the work to yield sufficiently to prevent too much jar, and the pins and grooves before described prevent the stems from turning in their seats as the work is turned by the operator. At each descent of the awl a hole is pricked in the heel, and at each ascent the awl is moved laterally to prepare for pricking the next hole, as before described. If the heel is to be a low f heel, the plate or heel-carrier V is raised to At the bottom of the plate 0 is a plate, N, l provided with a horizontal lip, 7t, and a downwardly-projecting lip, n. 20

the proper height by moving the cam W toward the left-hand side of Fig. 1. If it is to be a high heel, the carrier V is lowered by turning the cam in the opposite direction. If the nails are tobe driven vertically, the carrier is placed in a horizontal position. If they are to be driven slantingly, either inward or outward, the carrier V is inclined at the desired angle by means of the screws T by screwing them in opposite directions. :means provision is made for driving the nails in any desired direction, in order to provide for straight heels or for those which are either larger or smaller at the top than at the base.

What I claim as new, and desire to secure by Letters Patent, is-

1.. In a machine for pricking holes in boot and shoe heels, the heel-carrier V, suitably By this supported upon a pedestal, combined with the by the said heel-carrier may beelevated or depressed independently of the adjustment of the vertically-movable parts of said pedestal, in order to accommodate the machine to high or low heels, substantially as herein set forth.

2. In a machine for pricking holes .in boot and shoe heels, the heel-carrier V, supported upon a vertically-yielding stem within a pedestal, and pivoted centrally, as described, com? Joined with 'd6ViCS-,Sl1Ch as T-for inclining said heel-carrier toward or from a horizontal position,whereby the machine may be adjusted to heels in which the nails are to be-driven either vertically or slantingly inward or outward, substantially .as herein set forth.

3. In a machine for pricking holes in boot and shoe heels, the hollow pedestal P and sleeve P, combinedwiththe externally-shouldered stem Q, provided with the plate Qfland spring S, whereby the work is permitted to yield under the stroke of the awl, substantially as herein set forth.

4. In a heel-pricking machine, the hollow stem Q, provided with the plate (1?,- in combination with the cam W and stem R, provided with the follower R whereby the heel-carrier is raised or lowered,;substantially as herein set forth.

5. In a heel-pricking machine, the sleeve I, having the vertical groove or slot p, and the hollow steni Q, having the external pin, q, and the internal pin, 8, in combination with the stem R, having the vertical groove wgwhereby the work may be raised or lowered, but is prevented from turning on its carrier, substantially as herein set forth.

6. In a heel-pricking machine, the plate 3?, suitably supported as described, in combination with the pivoted heel-carrier V and the screws T T, whereby the heelcarrier may be oscillated and inclined at different angles, substantially as herein set forth.

7. In a heel-pricking machine, the adjustable heel-carrier V, substantially as described, in combination with the awl-head provided with the gage N, having the lips a a at right angles to each other, whereby the work is propdolph and State of Illinois, this 15th day of 30 July, A. D. 188-1.

THOMAS P. KING.

\Vit nesses:

THOS. BARBER, O. E. OWEN. 

